Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
1300101moderately pollutedexcellent191excellent
1200110moderately pollutedgood211excellent
1100128moderately pollutedexcellent191excellent
1000119moderately pollutedexcellent171excellent
0900118moderately pollutedexcellent161excellent
0800121moderately pollutedexcellent161excellent
0700102moderately pollutedexcellent161excellent
0600107moderately pollutedexcellent151excellent
050096lightly pollutedexcellent141excellent
040092lightly pollutedexcellent141excellent
030086lightly pollutedexcellent131excellent
020088lightly pollutedexcellent141excellent
010079lightly pollutedexcellent131excellent
000075lightly pollutedexcellent121excellent
230060goodexcellent101excellent
220065lightly pollutedexcellent101excellent
210047goodexcellent101excellent
200055goodexcellent91excellent
190050goodexcellent81excellent
180045goodexcellent61excellent
170033goodexcellent61excellent
160033goodexcellent61excellent
150027goodexcellent61excellent
140036goodexcellent51excellent